Dean,
I am "the guy trying to sell a distributor".
The reason for the 123ignition being far more stable than the Pertronix is
not the bigger diameter of the "rotor", but the absence of the springs and
the bob-weights in the base of the 123ignition. These springs and weights
have worn during the last decades and are less exact than an electronic
system simply due to being mechanical.
Our dizzy system only has one moving part in it. It is the shaft with the
rotor attached. Everything else is done electronically, even the vacuum is
measured electronically.
This dizzy is as reliable as the electronics of a modern car, so there's no
need to have a spare dizzy in the boot. Or would you carry spare electronics
in your everyday car?
Here's a link, that works for all:
http://brits-n-pieces.com/shop/product_info.php/info/p7908
Eric
Your link did'nt work,
But I found the video under the Austin Healey catagory of the web catalog.
I don't know, the Pertronix looks a little more stable than the points to
me.
But the guy is trying to sell a distributor, so go figure.
I think it might be the fact that the pertronix unit's small replacement
"rotor" is a little less precise due to it's small diameter.
This guys distributor probably has a pickup assembly with a larger diameter.
Also if he was testing the points and Pertronix on an old distributor with a
worn shaft then that would explain why they both scattered.
I definitely notice an improvement with the Pertronix.
Especially on the highway. The engine seems to hum along and never miss a
beat. Besides, who wants to mess with points anyway?
I just hope that the unit holds up over time.
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